id:A117053 - OEIS Search Results

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Enneagonal numbers for which both the sum of the digits and the product of the digits are also enneagonal numbers.

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0, 1, 9, 1350, 10071, 39804, 46806, 66309, 80484, 175056, 204369, 226950, 235950, 260169, 305916, 450186, 460284, 473064, 556206, 570246, 581604, 676500, 704481, 733029, 822075, 835701, 930606, 1015476, 1065084, 1155750, 1208634, 1305096 (list; graph; listen)

	OFFSET	`0,3`
	EXAMPLE	`39804 is in the sequence because (1) it is an enneagonal number,(2)the sum of its digits 3+9+8+0+4=24 is an enneagonal number and (3)the product of its digits 39804=0 is also an enneagonal number.`
	CROSSREFS	`Cf. A001106.` `Sequence in context: A084149 A020261 A076442 this_sequence A120347 A047944 A068182` `Adjacent sequences: A117050 A117051 A117052 this_sequence A117054 A117055 A117056`
	KEYWORD	`base,nonn`
	AUTHOR	`Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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